Gulfstream G450 vs Gulfstream GIV
The Gulfstream IV (1985-2003) and Gulfstream G450 (2004-2018) are direct predecessor/ successor — the G450 is the modernised GIV with PlaneView avionics, refined airframe and ~4,350 nm range vs the GIV's ~4,200 nm.
Full Specs Comparison
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| Spec / Model | Gulfstream G450 | Gulfstream GIV |
|---|---|---|
|
|
|
| Price Range | $8,750,000 – $17,800,000 | $3,995,000 – $5,700,000 |
| Category | Large Cabin Jet | Large Cabin Jet |
| Model Specifications | ||
| Seats | 16 | — |
| Cruise Speed | 476 kts (882 km/h) | — |
| Range | 4,350 nm (8,056 km) | — |
| Service Ceiling | 45,000 ft (13,716 m) | — |
| Max Gross Weight | 74,600 lbs (33,839 kg) | — |
| Useful Load | 22,000 lbs (9,979 kg) | — |
| Fuel Capacity | 4,370.0 gal (16540 L) | — |
| Fuel Burn | 340.0 GPH (1287 L/h) | — |
| TBO | 6,000 hrs | — |
| Overhaul Cost | $700,000 | — |
| Annual Fixed | $600,000 | — |
| Hourly Variable | $3,600 | — |
| Engines | 2 x Turbofan | — |
Cost of Ownership
EstimateGulfstream G450
Fuel$1,870/hr
Variable$3,600/hr
Annual Fixed$600,000/yr
Total (200 hrs/yr)
$1,320,000/yr
Gulfstream GIV
Which Should You Buy: Gulfstream G450 or Gulfstream GIV?
Bottom line: Choose the G450 for modern PlaneView cockpit, mandate-compliant systems and the youngest available large-cabin Gulfstream. Choose the GIV only for materially lower acquisition cost and accept the older avionics and mandate-upgrade investments.
Pick the G450 if…
- Newer design — production from 2004 vs 1985.
Pick the GIV if…
- Budget matters — from $3,995,000 vs $8,750,000, you save ~$4,755,000.
- More inventory — 68 listings vs 39.
Auto-generated from current market data and published specs. Confirm with a pre-buy inspection and professional appraisal.
Frequently Asked Questions
Which is better, Gulfstream G450 or Gulfstream GIV?
It depends on your mission and budget.
The G450 cruises at 476 kts with 4,350 nm range.
Review the specs table above to find which fits your flying profile.
How do prices compare?
Prices vary by year, hours, avionics, and condition. Always get a pre-buy inspection.
What's the difference between Gulfstream G450 and Gulfstream GIV?
Which is cheaper to operate per hour?
G450: about $3600/hr variable cost.
Variable cost includes fuel, reserves and overhaul accruals. Annual fixed costs (hangar, insurance, annual inspection) add to the total.
Which has more seats and useful load?
G450: 16 seats / 22,000 lb useful load.
Useful load = max gross weight minus empty weight; it determines how much fuel plus payload you can carry.
How does maintenance compare — TBO and overhaul cost?
G450: 6,000-hour TBO, overhaul ~$700,000.
Reaching the time-between-overhaul (TBO) triggers a mandatory engine/airframe rebuild that affects resale value.
Disclaimer: All prices and cost estimates are from third-party sources for informational purposes only. Always obtain professional appraisal and inspection before purchase.
Prices updated daily · Data: FAA Registry, NTSB · About our data